snapshot of https://github.com/casbin/casbin.git (master, 2026-09-15; blobs > 131072B omitted)

.github/workflows/performance-pr.yml

@@ -0,0 +1,97 @@
+name: Performance Comparison for Pull Requests
+
+on:
+  pull_request:
+    branches: [master]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  benchmark-pr:
+    name: Performance benchmark comparison
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout PR branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
+
+      # Save commit SHAs for display
+      - name: Save commit info
+        id: commits
+        run: |
+          BASE_SHA="${{ github.event.pull_request.base.sha }}"
+          HEAD_SHA="${{ github.event.pull_request.head.sha }}"
+          echo "base_short=${BASE_SHA:0:7}" >> $GITHUB_OUTPUT
+          echo "head_short=${HEAD_SHA:0:7}" >> $GITHUB_OUTPUT
+
+      # Run benchmark on PR branch
+      - name: Run benchmark on PR branch
+        run: |
+          go test -bench '.' -benchtime=2s -benchmem ./... | tee pr-bench.txt
+
+      # Checkout base branch and run benchmark
+      - name: Checkout base branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.base.sha }}
+          clean: false
+          path: base
+
+      - name: Run benchmark on base branch
+        working-directory: base
+        run: |
+          go test -bench '.' -benchtime=2s -benchmem ./... | \
+            tee ../base-bench.txt
+
+      # Install benchstat for comparison
+      - name: Install benchstat
+        run: go install golang.org/x/perf/cmd/benchstat@latest
+
+      # Compare benchmarks using benchstat
+      - name: Compare benchmarks with benchstat
+        id: benchstat
+        run: |
+          cat > comparison.md << 'EOF'
+          ## Benchmark Comparison
+
+          Comparing base branch (`${{ steps.commits.outputs.base_short }}`)
+          vs PR branch (`${{ steps.commits.outputs.head_short }}`)
+
+          ```
+          EOF
+          benchstat base-bench.txt pr-bench.txt >> comparison.md || true
+          echo '```' >> comparison.md
+
+          # Post-process to append percentage + emoji column (🚀 faster < -10%, 🐌 slower > +10%, otherwise ➡️)
+          if [ ! -f comparison.md ]; then
+            echo "comparison.md not found after benchstat." >&2
+            exit 1
+          fi
+          python3 .github/scripts/benchmark_formatter.py
+
+      # Save PR number
+      - name: Save PR number
+        run: |
+          PR_NUMBER="${{ github.event.pull_request.number }}"
+          if [ -z "$PR_NUMBER" ]; then
+            echo "Error: Pull request number is not available in event payload." >&2
+            exit 1
+          fi
+          echo "$PR_NUMBER" > pr_number.txt
+
+      # Upload benchmark results
+      - name: Upload benchmark results
+        uses: actions/upload-artifact@v4
+        with:
+          name: benchmark-results
+          path: |
+            comparison.md
+            pr_number.txt